DE02769734T1 - CHANNEL QUALITY MEASUREMENTS FOR DOWNLOADING OPERATING APPARATUS - Google Patents

CHANNEL QUALITY MEASUREMENTS FOR DOWNLOADING OPERATING APPARATUS Download PDF

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DE02769734T1
DE02769734T1 DE0001388226T DE02769734T DE02769734T1 DE 02769734 T1 DE02769734 T1 DE 02769734T1 DE 0001388226 T DE0001388226 T DE 0001388226T DE 02769734 T DE02769734 T DE 02769734T DE 02769734 T1 DE02769734 T1 DE 02769734T1
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rscp
format
iscp
measurement
measurements
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German (de)
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E. Stephen TERRY
G. Stephen DICK
M. James MILLER
Eldad Zeira
Ariela Zeira
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InterDigital Technology Corp
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InterDigital Technology Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H04B17/327—Received signal code power [RSCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Abstract

A method implemented by a user equipment, UE, the method comprising determining a first measurement value based on at least a first measurement taken during at least a first time interval; determining a second measurement value based on at least on a second measurement taken during at least a second time interval; and sending a measurement report to a base station, wherein the measurement report comprises an indication of the first measurement value and a difference indication for the second measurement value, wherein the difference indication for the second measurement value indicates a difference of the second measurement value relative to the first measurement value.

Claims (29)

Verfahren zum Liefern von Kanalqualitätsmessungen (Channel Quality/-CQ) zum Zuweisen von Abwärtsstreckenressourcen zwischen mindestens einem Benutzergerät (User Equipment/UE) und einer Basisstation in einem drahtlosen digitalen Kommunikationssystem, das ein Codemultiplex-Vielfachzugriffs(CDMA)-Verfahren einsetzt, wobei das Verfahren die folgenden Schritte aufweist: (a) die Basisstation sendet ein Signal an das UE zur Verwendung durch das UE zum Durchführen einer Messung; (b) das UE führt im Ansprechen auf den Empfang des Signals von der Basisstation, das bei Schritt (a) gesendet wurde, eine erste Messung empfangener Signalcodeleistung (Received Signal Code Power/RSCP) durch; (c) das UE führt im Ansprechen auf den Empfang des Signals von der Basisstation, das bei Schritt (a) gesendet wurde, eine zweite Messung einer Interferenzsignalcodeleistung (Interference Signal Code Power/RSCP) durch; und (d) das UE sendet in einem spezifischen Format ein CQ-Signal, das RSCP- und ISCP-Werte enthält, an die Basisstation; wobei die erste und die zweite Messung und das Format vorausgewählt sind.Process for delivering channel quality measurements (Channel Quality / -CQ) to allocate downlink resources between at least one user device (UE) and a base station in a wireless digital communication system using a code division multiple access (CDMA) method uses, the method comprises the following steps: (A) the base station sends a signal to the UE for use the UE to perform a measurement; (b) the UE leads in response to the reception of the signal from the base station, sent in step (a), a first measurement received Signal code power (Received Signal Code Power / RSCP) by; (C) the UE leads in response to the reception of the signal from the base station, sent at step (a), a second measurement of interference signal code power (Interference Signal Code Power / RSCP) by; and (d) the UE sends a CQ signal containing RSCP and ISCP values to the in a specific format Base station; where the first and second measurement and format preselected are. Verfahren nach Anspruch 1, bei dem die erste Messung weiter ein kontinuierliches Messen von RSCP beinhaltet.The method of claim 1, wherein the first measurement further includes continuous measurement of RSCP. Verfahren nach Anspruch 1, weiter mit dem Schritt des Verwendens der ersten und der zweiten Messung zum Erzeugen eines Verhältnisses RSCP/ISCP, wobei das Format das Verhältnis beinhaltet.The method of claim 1, further comprising the step using the first and second measurements to generate a RSCP / ISCP ratio, where the format is the ratio includes. Verfahren nach Anspruch 1, bei dem das Senden weiter den Schritt des Sendens sowohl der RSCP- als auch der ISCP-Messung an die Basisstation beinhaltet.The method of claim 1, wherein the sending continues the step of sending both RSCP and ISCP measurements to the base station. Verfahren nach Anspruch 1, bei dem die zweite Messung das Erfassen von Softsymbolfehlern beinhaltet.The method of claim 1, wherein the second measurement includes detecting soft symbol errors. Verfahren nach Anspruch 1, bei dem das Format die erste und die zweite Messung für jeden Zeitschlitz beinhaltet.The method of claim 1, wherein the format is first and second measurement for includes every time slot. Verfahren nach Anspruch 1, weiter mit dem Schritt des Erzeugens eines Verhältnisses RSCP/ISCP und des Sendens von Modulationsparametern an die Basisstation auf der Grundlage des Verhältnisses.The method of claim 1, further comprising the step of creating a relationship RSCP / ISCP and sending modulation parameters to the base station based on the ratio. Verfahren nach Anspruch 1, bei dem die Basisstation im Ansprechen auf das empfangene CQ-Signal, das vom UE kommt, den für das Senden an das UE verwendeten Leistungspegel einstellt.The method of claim 1, wherein the base station in response to the received CQ signal coming from the UE, the for the Sending to the UE sets power level used. Verfahren nach Anspruch 1, weiter mit dem Schritt des getrennten Codierens der ersten und der zweiten Messung, so dass das Format eine gemeinsame CQ für alle Zeitschlitze und eine Differenz-CQ für jeden Zeitschlitz beinhaltet.The method of claim 1, further comprising the step coding the first and second measurements separately, so that the format has a common CQ for all time slots and one Difference CQ for includes every time slot. Verfahren nach Anspruch 1, bei dem das Format einen Mittelwert der ISCP für alle Kanäle und eine Differenz zum Mittelwert für jeden Kanal enthält.The method of claim 1, wherein the format is a Mean of the ISCP for all channels and contains a difference to the mean for each channel. Verfahren nach Anspruch 1, bei dem das Format einen Mittelwert der RSCP für alle Kanäle und eine Differenz zum Mittelwert für jeden Kanal enthält.The method of claim 1, wherein the format is a Mean of the RSCP for all channels and contains a difference to the mean for each channel. Verfahren nach Anspruch 1, bei dem die erste und die zweite Messung das Messen einer unterschiedlichen Gruppe von Zeitschlitzen in jedem Rahmen (Frame) über N Rahmen hinweg und des Wiederholens dieses Musters für alle N Rahmen beinhaltet.The method of claim 1, wherein the first and the second measurement is measuring a different group of Time slots in each frame (frame) across N frames and the Repeating this pattern for includes all N frames. Verfahren nach Anspruch 1, bei dem das Format einen eines vorgegebenen Satzes von MCS-Pegeln enthält.The method of claim 1, wherein the format is a contains a predetermined set of MCS levels. Drahtloses digitales Kommunikationssystem, das ein Codemultiplex-Vielfachzugriffs(CDMA)-Verfahren einsetzt, zum Erhalten von Kanalqualitätsmessungen (Channel Quality/CQ) zur Abwärtsstrecken-Ressourcenzuweisung eines Netzes an mindestens ein Benutzergerät (User Equipment/UE), wobei das System aufweist: (a) Mittel zum Senden eines Signals an das UE zur Verwendung durch das UE zum Durchführen einer Messung; (b) wobei das UE erste Messmittel zum Messen einer empfangenen Signalcodeleistung (Received Signal Code Power/RSCP) im Ansprechen auf den Empfang des Signals vom Netz aufweist; (c) wobei das UE zweite Messmittel zum Messen einer Interferenzsignalcodeleistung (Interference Signal Code Power/ISCP) im Ansprechen auf den Empfang des Signals vom Netz aufweist; und (d) wobei das UE Mittel zum Senden einer Abwärtsstrecken-CQ gemäß einem vorbestimmten Format aufweist.Wireless digital communication system that one Code division multiple access (CDMA) method uses to get channel quality measurements (Channel Quality / CQ) for downlink resource allocation a network to at least one user device (UE), where the system has: (a) means for sending a signal to the UE for use by the UE to take a measurement; (B) wherein the UE first measuring means for measuring a received signal code power (Received Signal Code Power / RSCP) in response to reception of the signal from the network; (c) where the UE second measuring means for measuring an interference signal code power (interference signal Code Power / ISCP) in response to the receipt of the signal from the network having; and (d) the UE means for sending a downlink CQ according to one predetermined format. System nach Anspruch 14, bei dem die ersten Messmittel RSCP kontinuierlich messen.The system of claim 14, wherein the first measuring means Measure RSCP continuously. System nach Anspruch 14, bei dem das UE weiter Mittel zum Erzeugen eines Verhältnisses RSCP/ISCP aufweist und bei dem das Format das Verhältnis beinhaltet.The system of claim 14, wherein the UE further means to generate an RSCP / ISCP ratio and where the format includes the ratio. System nach Anspruch 14, bei dem das Format einen Ausgewählten aus mehreren MCS-Pegeln beinhaltet.The system of claim 14, wherein the format is a Chosen from multiple MCS levels included. System nach Anspruch 14, bei dem das Format einen Mittelwert aller CQ-Messungen und die Abweichung vom Mittelwert für jede der CQ-Messungen beinhaltet.The system of claim 14, wherein the format is a Average of all CQ measurements and includes the deviation from the mean for each of the CQ measurements. System nach Anspruch 14, bei dem das Format einen Durchschnittswert der CQ-Messungen und die Abweichungen vom Durchschnitt für jede der CQ-Messungen beinhaltet.The system of claim 14, wherein the format is a Average value of the CQ measurements and the deviations from the average for every which includes CQ measurements. Benutzergerät (User Equipment/UE), das ein Codemultiplex-Vielfachzugriffs(CDMA)-Verfahren und eine sich wiederholende Rahmenstruktur einsetzt, wobei jeder Rahmen mehrere Zeitschlitze aufweist, zum Liefern von Kanalqualitätsmessungen (Channel Quality/-CQ), aufweisend: – Mittel zum Empfangen eines Signals zum Durchführen einer Messung; – Mittel zum Messen einer empfangenen Signalcodeleistung (Received Signal Code Power/RSCP) und einer Interferenzsignalcodeleistung (Interference Signal Code Power/ISCP) im Ansprechen auf den Empfang des Signals; – Formatmittel zum Empfangen der RSCP- und der ISCP-Messung und zum Formatieren der RSCP- und der ISCP-Messung gemäß einem vorbestimmten Format; und – einen Sender zum Senden mindestens der RSCP- oder der ISCP-Messung im vorbestimmten Format.user equipment (User Equipment / UE), which is a code division multiple access (CDMA) method and uses a repeating frame structure, with each frame has multiple time slots for delivering channel quality measurements (channel Quality / -CQ), showing: - Medium for receiving a signal to perform a measurement; - Medium for measuring a received signal code power (received signal Code Power / RSCP) and an interference signal code power (interference Signal Code Power / ISCP) in response to receipt of the signal; - Format means for receiving RSCP and ISCP measurements and for formatting the RSCP and ISCP measurements according to a predetermined format; and - one Transmitter for sending at least the RSCP or ISCP measurement in the predetermined format. UE nach Anspruch 20, bei dem die Messmittel RSCP kontinuierlich messen.UE according to claim 20, wherein the measuring means RSCP measure continuously. UE nach Anspruch 20, bei dem das vorbestimmte Format ein Verhältnis RSCP/ISCP beinhaltet.The UE of claim 20, wherein the predetermined format a relationship RSCP / ISCP included. UE nach Anspruch 20, bei dem das vorbestimmte Format sowohl die RSCP- als auch die ISCP-Messung beinhaltet.The UE of claim 20, wherein the predetermined format includes both RSCP and ISCP measurements. UE nach Anspruch 20, bei dem die Messmittel weiter Softsymbolfehler im Signal erfassen.UE according to claim 20, wherein the measuring means further Detect soft symbol errors in the signal. UE nach Anspruch 20, bei dem das vorbestimmte Format RSCP und ISCP für jeden Zeitschlitz beinhaltet.The UE of claim 20, wherein the predetermined format RSCP and ISCP for includes every time slot. UE nach Anspruch 20, bei dem das vorbestimmte Format einen Mittelwert der ISCP für alle Zeitschlitze und eine Differenz zum Mittelwert für jeden Zeitschlitz beinhaltet.The UE of claim 20, wherein the predetermined format an average of the ISCP for all time slots and a difference to the mean for each Includes time slot. UE nach Anspruch 20, bei dem das vorbestimmte Format einen Mittelwert der RSCP für alle Zeitschlitze und eine Differenz zum Mittelwert für jeden Zeitschlitz beinhaltet.The UE of claim 20, wherein the predetermined format an average of the RSCP for all time slots and a difference to the mean for each Includes time slot. UE nach Anspruch 20, bei dem die Messmittel in jedem Rahmen über N Rahmen hinweg eine andere Gruppe von Zeitschlitzen messen und dieses Muster für alle N Rahmen wiederholen.UE according to claim 20, wherein the measuring means in each Frame over Measure another group of timeslots and frames this pattern for Repeat all N frames. UE nach Anspruch 20, bei dem das vorbestimmte Format einen von mehreren MCS-Pegeln beinhaltet.The UE of claim 20, wherein the predetermined format contains one of several MCS levels.
DE0001388226T 2001-05-14 2002-05-14 CHANNEL QUALITY MEASUREMENTS FOR DOWNLOADING OPERATING APPARATUS Pending DE02769734T1 (en)

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US29073901P 2001-05-14 2001-05-14
US290739P 2001-05-14
PCT/US2002/015242 WO2002093757A2 (en) 2001-05-14 2002-05-14 Channel quality measurements for downlink resource allocation

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US (5) US8199726B2 (en)
EP (4) EP2408122B1 (en)
JP (11) JP2004532586A (en)
KR (17) KR20030094403A (en)
CN (4) CN101090578B (en)
AT (1) ATE536008T1 (en)
AU (1) AU2002308716B2 (en)
BR (2) BR0209624A (en)
CA (2) CA2447572A1 (en)
DE (1) DE02769734T1 (en)
DK (2) DK2938009T3 (en)
ES (3) ES2537389T3 (en)
HK (3) HK1112147A1 (en)
IL (4) IL158729A0 (en)
MX (1) MXPA03010488A (en)
NO (2) NO20035020L (en)
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